Oil pan for internal combustion engines



May 19, 1931. I 'IY'ALLQN 1,805,729

OIL PAN FOR INTERNAL COMBUSTION ENGINES Filed July is, 1929 o o o o o oo o 7 Inventor A itomey p wherein p pan.

' Patented May 19; 1931 2 I ED STATES PATENT OFFICE l enoncr. TAILOR, orranoim, new max on. 1 m 21-03 m'rnmut COMBUSTION mamas Application fledm 1:, a. semi no. svaiaa.

motor havingan oil base without materially altering-the construction .ofthe motor, is econom1ca1,-and ma be manufacured and 15 retailed at anomina cost.

Other objects and advantages of thls invention will become apparent"during a study of the following description, taken in connection withthe accompanying drawings,

Figure 1 is a longitudinal vertical sectional view, taken through'myimproved oil pan.-

Figure 2 is a top plan view of the oil Figure 3 is an end elevationthereof, part of the pan being broken away.

In oil pans now used for this the walls of the the result that a thecold air coming in contact with the walls of the pan causing the'wall tosweat, thus forming a vapor which .runs into the oil, which, of course,as is well known, prevents P p us are ofsingle ply the properlubrication. It is to overcome this objebtional .feature thatconstitutes the primary object of this invention, and to that end I haveconstructed an oil pan embodying certain structural features, which willo tend to obviate such objectionable features.

jfieferring, therefore, morein detail to the 1t oil pan "is designatedgenerally! the reference character 5 .and'

will be seen that my improv therein by at the same 4a 'is ofsubstantially elongated rectangular configuration, and is open atits'to'p as is conventional. The side,

the pan are formed of an inner wall 6 and an outer'wall 7 spacedfromsaid inner wall so to provide for. the pan an-air compartment 13 isdepressed r the oil becomes warm, closing 'air from triking bottom andends of or chamber 8. The inner wall 6 at the sides and ends thereofisTpi-ovided with an outstanding flan e 9.

e flange 9 of the inner wallis provi ed wlth a plurality of spacedopemngs 10, to facilitate attachment of the pan in the usual well-knownThe outer wall .7 of the manner. 1 an ad acent 1ts top portion extendsinward yas at 11, and has its marginaledge secured to the top of theinner wall 6, direc edge v flange 10 of said wall as at tly beneath-theo 12. By securing the walls at their top edges in this manner, asubstantially air-tight compartment 8 is formed between the walls. Inthe bottom of the pan, the inner wall 6 and substantially centrally ofsaid bottom is provided with a drain opening 1 14 extends downwardlyfrom 3, and a flange saidinner wall about said opening. That portion ofthe outer wall 7 of the pan, adjacent the opening 7 as at 15, toprovidea bottom wall 16 for the drain outlet 13, the flange 14 havingthe lower end thereof resting within the depremion were a peripheral 15and constitutin 'wall for said dram out as let 13. The bottomiwall 16 ofthe drain 13 is provided'with an outlet opening 17 and a plug 18 maywise inserted within said opening the same. "It is also to be notedthat. 99

he screw threaded or other- 17, for

the bottom wall i the drain 13 extends beyond the flange depression 14,the diameter of the 15 being greater than the dlameter of the drain 13.The extended portion of the wall 16 is providedwith a dram outas let 19,which constitutes an chamber 8, said air 19 being normally medium of asuitab e The outer face of t e closed lug outlet for the chamber drainoutlet 1 through the peripheral wall of the depression-.15 formed insaid outer wall e agement with a safety sa ety cap will, of course, 18and 20 and at H I ethebottom' 1'3; Extending thro'u h an adajcent the'uper e ge of 7 at one end 0 the pan 5 is ing 23. This casing 23 is '0 ed7 is screw threaded as at 21, for threaded cap 22. This protect theplugs, heiame time will prevent a};

16 of the drain 0 iii formed tl 'w tlls 6 and a sheath or casfsubstantially 3 p trolled from a switchv elongated tubular configurationand extends inwardly of the pan along said one end of the pan at thebottom of the pan, the inner end of the casing terminating in asubstantially C-shaped end portion 24, which end portion 24 is locatedor adapted for disposition within the drain 13, resting upon the bottomwall 16 of the drain. An electrical heating unit 25 extends through thesheathing or casin 23, for heating the oil within the pan 5. his heatingunit may be of any conventional electric t e and ma be connot shownlocated upon the dash board of the vehicle, when the oil pan is usedwith such internal combustion engines as are employed as the 10-comotive power of an automobile.

1 It may be also well to mention that at its ends, the inner and outerwalls of the pan are suitably depressed, as at 26, thus permitting aready application or substitution of this pan for the conventional typeof pan now in use.

Obviously, in forming the pan of inner and outer s aced walls 6 and 7,the cold air will not a cot the heated oil within the pan, sinceobviousl the cold air striking the outer wall 7 o the pan with theresult that any vapor formed thereby will be caught in the space 8between the inner and outer *walls, thus preventing any accumulation ofvapor on the inner wall and will not, in any we affect the oilwithin thepan.

gbviously, by removing the safety cap 22, the drain plug 20 mayberemoved so as to permit the drainage of vapor or any moisture which hasaccumulated within the air space 8-and likewise will also permit of theremoval of the plug 18,-for draining the'oil from the pan. 7

Of course, the oil within the pan will be heated, through the medium ofthe electri- 4 cal heatingv unit 25 and this unit will, of

that I have providedan oil revent the accumulation 0 course, be suitablyprotected from contact with the oil, through the medium of its casing orsheathing 23. s

From the foregoing then, it will be seen an which will vapor on theinner face of the wall of the an, with the result that the heated oilW111 be always maintained in a pure state free from such vapor whichwould otherwise resultin impro r lubrication of the motor.

' ven though I have herein shown and described the preferred embodimentof my invention, it is to be understood that the same is susce tible tochan es fully comprehended by t e spirit of t e invention and the sco eof the appended claims.

at is claimed is:

. 1. An open top oil pan for internal combustion' engines, said pancomprising inner and outer spaced walls merging into one another alongthe upper side end edges I l of the pan, to 'form an air space'therebetween, said inner wall having a flange formed thereon, saidflange provided with openings to facilitate the attachment of said panto the crank case of the internal combustion engine, said pan beingprovided with a drain opening in the bottom thereof, a lug for closinsaid opening, the outer wail 0 said pan orming the bottom oi said drain,said outer wall being'further rovided with an opening constitutin theair space, a plug for c osing saidlast mentioned opening, a safety capsecured to said outer wall for enclosing said lug, and means for heatingthe interior 0 said pan. 2. An open top oil pan for internal combustionengines, said pan comprising inner and outer spaced walls merging intoone another along the upper side and end edges of the pan, to form anair space therebetween, said inner wall having a flange formed thereon,said flange provided with openings to facilitate the attachment'of saidpan to the'crank case of the internal combustion engine, said panbeing'provided with a drain opening in the bottom thereof, a In forclosing said opening, the outer wal of said pan formin the bottom ofsaid drain, said outer wall being further rovided with an openingconstituting the rain for said air space, a plug for closing said lastmentioned opening, a safety cap; secured to said outerto provide an a1rspace extending alon the sides and ends of the pan, said outer we 1being provided with a drain opening in the bottom thereof for theinterior of the pan a plug for closing said opening, and sai bottom wallbeing provided w1th a drain opening for the air space between said innerand outer walls, and a plug for closing said last mentioned 0 4. An oilpan or internal combustionengmes comprisin inner and outer spaced wallsto provi 9 an air space extendin along the sides and ends of the pan,sai puter wall being provided with a drain openmg n the bottom thereoffor the interior of the pani a plug for closing said opening,

and sai bottom wall being provided with a drain-opening for the airspace between said inner and outer walls, and a plug for closing saidlast mentioned 0 ening, and a cup-shaped cap secured to sai bottom walland enclosing said plu t In testimony whereog l afiix my signaure.

rain for said GEORGE TALLONJ 1&0

